| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more contributor license |
| * agreements. See the NOTICE file distributed with this work for additional information regarding |
| * copyright ownership. The ASF licenses this file to You under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance with the License. You may obtain a |
| * copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software distributed under the License |
| * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express |
| * or implied. See the License for the specific language governing permissions and limitations under |
| * the License. |
| */ |
| package org.apache.geode.internal.cache.tx; |
| |
| import java.io.DataInput; |
| import java.io.DataOutput; |
| import java.io.IOException; |
| import java.util.Set; |
| |
| import org.apache.logging.log4j.Logger; |
| |
| import org.apache.geode.DataSerializer; |
| import org.apache.geode.cache.CacheException; |
| import org.apache.geode.distributed.internal.ClusterDistributionManager; |
| import org.apache.geode.distributed.internal.DirectReplyProcessor; |
| import org.apache.geode.distributed.internal.DistributionManager; |
| import org.apache.geode.distributed.internal.DistributionMessage; |
| import org.apache.geode.distributed.internal.DistributionStats; |
| import org.apache.geode.distributed.internal.InternalDistributedSystem; |
| import org.apache.geode.distributed.internal.ReplyMessage; |
| import org.apache.geode.distributed.internal.ReplyProcessor21; |
| import org.apache.geode.distributed.internal.ReplySender; |
| import org.apache.geode.distributed.internal.membership.InternalDistributedMember; |
| import org.apache.geode.internal.Assert; |
| import org.apache.geode.internal.cache.LocalRegion; |
| import org.apache.geode.internal.cache.PartitionedRegion; |
| import org.apache.geode.internal.cache.RemoteOperationException; |
| import org.apache.geode.internal.logging.log4j.LogMarker; |
| import org.apache.geode.internal.serialization.DeserializationContext; |
| import org.apache.geode.internal.serialization.SerializationContext; |
| import org.apache.geode.logging.internal.log4j.api.LogService; |
| |
| /** |
| * This message is used be a replicate region to send a contains key/value request to another peer. |
| * |
| * @since GemFire 6.5 |
| */ |
| public class RemoteContainsKeyValueMessage extends RemoteOperationMessageWithDirectReply { |
| private static final Logger logger = LogService.getLogger(); |
| |
| private boolean valueCheck; |
| |
| private Object key; |
| |
| protected static final short VALUE_CHECK = UNRESERVED_FLAGS_START; |
| |
| public RemoteContainsKeyValueMessage() {} |
| |
| public RemoteContainsKeyValueMessage(InternalDistributedMember recipient, String regionPath, |
| DirectReplyProcessor processor, Object key, boolean valueCheck) { |
| super(recipient, regionPath, processor); |
| this.valueCheck = valueCheck; |
| this.key = key; |
| } |
| |
| /** |
| * Sends a ReplicateRegion message for either |
| * {@link org.apache.geode.cache.Region#containsKey(Object)}or |
| * {@link org.apache.geode.cache.Region#containsValueForKey(Object)} depending on the |
| * <code>valueCheck</code> argument |
| * |
| * @param recipient the member that the contains keys/value message is sent to |
| * @param r the LocalRegion |
| * @param key the key to be queried |
| * @param valueCheck true if {@link org.apache.geode.cache.Region#containsValueForKey(Object)} is |
| * desired, false if {@link org.apache.geode.cache.Region#containsKey(Object)}is desired |
| * @return the processor used to read the returned keys |
| */ |
| public static RemoteContainsKeyValueResponse send(InternalDistributedMember recipient, |
| LocalRegion r, Object key, boolean valueCheck) throws RemoteOperationException { |
| Assert.assertTrue(recipient != null, "recipient can not be NULL"); |
| |
| RemoteContainsKeyValueResponse p = |
| new RemoteContainsKeyValueResponse(r.getSystem(), recipient, key); |
| RemoteContainsKeyValueMessage m = |
| new RemoteContainsKeyValueMessage(recipient, r.getFullPath(), p, key, valueCheck); |
| |
| Set<?> failures = r.getDistributionManager().putOutgoing(m); |
| if (failures != null && failures.size() > 0) { |
| throw new RemoteOperationException(String.format("Failed sending < %s >", m)); |
| } |
| return p; |
| } |
| |
| @Override |
| protected boolean operateOnRegion(ClusterDistributionManager dm, LocalRegion r, long startTime) |
| throws CacheException, RemoteOperationException { |
| if (logger.isTraceEnabled(LogMarker.DM_VERBOSE)) { |
| logger.trace(LogMarker.DM_VERBOSE, |
| "DistributedRemoteContainsKeyValueMessage operateOnRegion: {}", r.getFullPath()); |
| } |
| |
| if (!(r instanceof PartitionedRegion)) { // prs already wait on initialization |
| r.waitOnInitialization(); // bug #43371 - accessing a region before it's initialized |
| } |
| |
| final boolean replyVal; |
| if (this.valueCheck) { |
| replyVal = r.containsValueForKey(this.key); |
| } else { |
| replyVal = r.containsKey(this.key); |
| } |
| |
| if (logger.isTraceEnabled(LogMarker.DM_VERBOSE)) { |
| logger.trace( |
| "DistributedRemoteContainsKeyValueMessage sending reply back using processorId: {}", |
| getProcessorId()); |
| } |
| |
| RemoteContainsKeyValueReplyMessage.send(getSender(), getProcessorId(), getReplySender(dm), |
| replyVal); |
| |
| // Unless there was an exception thrown, this message handles sending the |
| // response |
| return false; |
| } |
| |
| @Override |
| protected void appendFields(StringBuffer buff) { |
| super.appendFields(buff); |
| buff.append("; valueCheck=").append(this.valueCheck).append("; key=").append(this.key); |
| } |
| |
| @Override |
| public int getDSFID() { |
| return R_CONTAINS_MESSAGE; |
| } |
| |
| @Override |
| public void fromData(DataInput in, |
| DeserializationContext context) throws IOException, ClassNotFoundException { |
| super.fromData(in, context); |
| this.key = DataSerializer.readObject(in); |
| this.valueCheck = (flags & VALUE_CHECK) != 0; |
| } |
| |
| @Override |
| public void toData(DataOutput out, |
| SerializationContext context) throws IOException { |
| super.toData(out, context); |
| DataSerializer.writeObject(this.key, out); |
| } |
| |
| @Override |
| protected short computeCompressedShort() { |
| short flags = super.computeCompressedShort(); |
| if (this.valueCheck) |
| flags |= VALUE_CHECK; |
| return flags; |
| } |
| |
| public static class RemoteContainsKeyValueReplyMessage extends ReplyMessage { |
| |
| /** Propagated exception from remote node to operation initiator */ |
| private boolean containsKeyValue; |
| |
| /** |
| * Empty constructor to conform to DataSerializable interface |
| */ |
| public RemoteContainsKeyValueReplyMessage() {} |
| |
| private RemoteContainsKeyValueReplyMessage(int processorId, boolean containsKeyValue) { |
| this.processorId = processorId; |
| this.containsKeyValue = containsKeyValue; |
| } |
| |
| /** Send an ack */ |
| public static void send(InternalDistributedMember recipient, int processorId, |
| ReplySender replySender, boolean containsKeyValue) { |
| Assert.assertTrue(recipient != null, "ContainsKeyValueReplyMessage NULL reply message"); |
| RemoteContainsKeyValueReplyMessage m = |
| new RemoteContainsKeyValueReplyMessage(processorId, containsKeyValue); |
| m.setRecipient(recipient); |
| replySender.putOutgoing(m); |
| } |
| |
| /** |
| * Processes this message. This method is invoked by the receiver of the message. |
| * |
| * @param dm the distribution manager that is processing the message. |
| */ |
| @Override |
| public void process(final DistributionManager dm, ReplyProcessor21 processor) { |
| final long startTime = getTimestamp(); |
| |
| if (processor == null) { |
| if (logger.isTraceEnabled(LogMarker.DM_VERBOSE)) { |
| logger.trace(LogMarker.DM_VERBOSE, "ContainsKeyValueReplyMessage processor not found"); |
| } |
| return; |
| } |
| processor.process(this); |
| |
| dm.getStats().incReplyMessageTime(DistributionStats.getStatTime() - startTime); |
| } |
| |
| @Override |
| public int getDSFID() { |
| return R_CONTAINS_REPLY_MESSAGE; |
| } |
| |
| @Override |
| public void fromData(DataInput in, |
| DeserializationContext context) throws IOException, ClassNotFoundException { |
| super.fromData(in, context); |
| this.containsKeyValue = in.readBoolean(); |
| } |
| |
| @Override |
| public void toData(DataOutput out, |
| SerializationContext context) throws IOException { |
| super.toData(out, context); |
| out.writeBoolean(this.containsKeyValue); |
| } |
| |
| @Override |
| public String toString() { |
| StringBuffer sb = new StringBuffer(); |
| sb.append("ContainsKeyValueReplyMessage ").append("processorid=").append(this.processorId) |
| .append(" reply to sender ").append(this.getSender()) |
| .append(" returning containsKeyValue=").append(doesItContainKeyValue()); |
| return sb.toString(); |
| } |
| |
| public boolean doesItContainKeyValue() { |
| return this.containsKeyValue; |
| } |
| } |
| |
| /** |
| * A processor to capture the value returned by |
| * {@link org.apache.geode.internal.cache.tx.RemoteContainsKeyValueMessage.RemoteContainsKeyValueReplyMessage} |
| * |
| * @since GemFire 6.5 |
| */ |
| public static class RemoteContainsKeyValueResponse extends RemoteOperationResponse { |
| private volatile boolean returnValue; |
| private volatile boolean returnValueReceived; |
| final Object key; |
| |
| public RemoteContainsKeyValueResponse(InternalDistributedSystem ds, |
| InternalDistributedMember recipient, Object key) { |
| super(ds, recipient, false); |
| this.key = key; |
| } |
| |
| @Override |
| public void process(DistributionMessage msg) { |
| try { |
| if (msg instanceof RemoteContainsKeyValueReplyMessage) { |
| RemoteContainsKeyValueReplyMessage reply = (RemoteContainsKeyValueReplyMessage) msg; |
| this.returnValue = reply.doesItContainKeyValue(); |
| this.returnValueReceived = true; |
| if (logger.isTraceEnabled(LogMarker.DM_VERBOSE)) { |
| logger.trace(LogMarker.DM_VERBOSE, "ContainsKeyValueResponse return value is {}", |
| this.returnValue); |
| } |
| } |
| } finally { |
| super.process(msg); |
| } |
| } |
| |
| /** |
| * @return Set the keys associated with the ReplicateRegion of the |
| * {@link RemoteContainsKeyValueMessage} |
| */ |
| public boolean waitForContainsResult() throws RemoteOperationException { |
| try { |
| waitForRemoteResponse(); |
| } catch (CacheException ce) { |
| logger.debug("ContainsKeyValueResponse got remote CacheException", ce); |
| throw new RemoteOperationException( |
| "RemoteContainsKeyResponse got remote CacheException; triggering RemoteOperationException.", |
| ce); |
| } |
| if (!this.returnValueReceived) { |
| throw new RemoteOperationException( |
| "no return value received"); |
| } |
| return this.returnValue; |
| } |
| } |
| |
| } |